package main

import "fmt"

func add(x,y int)int{
	return x+y
}

const (
	Big =1<<100
	Small=Big>>99
)

func needInt(x int)int  {
	return x*10+1
}
func needFloat(x float64)float64{
	return x*0.1
}
func main() {
	fmt.Println(Small)
	fmt.Println()

	fmt.Println(needInt(Small))
	fmt.Println(needFloat(Small))
	fmt.Println(needFloat(Big))

	bb:= func() string{
		return "huangliusong"
	}
	fmt.Println(bb())
}
